Re: perf: fuzzer leads to trace_kprobe: Could not insert message flood

[Ingo Molnar]

* Song Liu <songliubraving@xxxxxx> wrote:

> diff --git a/kernel/events/core.c b/kernel/events/core.c
> index d7af828..2d5fe26 100644
> --- a/kernel/events/core.c
> +++ b/kernel/events/core.c
> @@ -8400,6 +8400,10 @@ static int perf_kprobe_event_init(struct perf_event *event)
> 
>         if (event->attr.type != perf_kprobe.type)
>                 return -ENOENT;
> +
> +       if (!capable(CAP_SYS_ADMIN))
> +               return -EACCES;
> +
>         /*
>          * no branch sampling for probe events
>          */
> @@ -8437,6 +8441,10 @@ static int perf_uprobe_event_init(struct perf_event *event)
> 
>         if (event->attr.type != perf_uprobe.type)
>                 return -ENOENT;
> +
> +       if (!capable(CAP_SYS_ADMIN))
> +               return -EACCES;

This is seriously whitespace damaged: all tabs are spaces ...

Thanks,

	Ingo